Pump.



F. L. ANTISE LL & D. W. BLAIR.

PUMP.

- A PPLIOATIQN FILED JULY 5, 1906.

91,518. Patented Ja1110,1911.

r FRANK I ANTISELL, on NEW YORK, N. Y., AND DAVID w. BLAIR, or PERTH AMBOY,

' NEW JERSEY. v

PUMP.

eaters.

Patented Jan. to, 1911.

To'cll whom it may concern:

Be it known that we, FRANK L. AN'I'ISEIL,

' a citizen of the United States, and a resident of the city, county, and State "of New York,

and DAVID W. BLAIR, a citizen of the United 4 7 States,

and a resident of Perth Amboy, county f Middlesex, and State of New J ersey, have invented a certain newand useful Improvement in Pumps, of which the following is a specification.

Our invention relates to pumps and especially to that class of pumps for pumping acids or acid solutions.

One of the objects of our invention is to produce a pump in which packed joints, the packing of which is dispensed with so that there will be no leaks in the joints.

Another object is to so produce a pump that the acid will not attack the shaft of taken up.

the pump.

Another object is to dispense with valves. Other objects will appear from the here inafter description.

Referring to the drawing in which the same reference character indicates the same part in the several views: Figure l is a side elevation with the-parts in vertical section. Fig. 2 is a front elevation with the tank shown in Fig. I removed. Fig. 3 is a top view of the pump casing. Fig. 4 is a top' view of the pump blades. Fig. 5 is a vertical longitudlnal section of a modified cons'truction of means for supplyingthe pump. The part marked A on the drawing represents a framesupported-on a base B.

C C are upper and lower brackets secured to the frame and having bearings c c for the shaft D of the pump.

E is a support secured to the baseB and on which the pump casing F issecured.

The inner surface of the top portion of .the

pump casing is tapered at f.

G is a cover for the casinghaving an upturned flange 9 which is tapered to ht snugly against the tapered portion f of the casing and to make a tight 7 joint. 7 This cover G is provided .with 'anopenin 9.

through which he'lower end ofthe s aft I) projects int cover when fitted in the casing formsthe chamber f in .which.,the pump. wheel secured to the shaft revolves. The periphery of the casing is provided with -he circular channel f enlarged in diameter at the exit aflected by acids, are.

the pump casing. The

end f. This channel isopened on the side resisting material, which fits 'ver the nut L is a cover, made of or cove ed with acid K to protect'the same from the action of the solution bein The shaft 5 above and resting on the bearings c a, by Wl'llCh the downward thrust of the shaft is pumped. A 1s pr M is a pulley secured tot-he shlaft around which passes a belt, not shown, to drive the shaft from any appropriatesource of power.

'fifi The wall of the'cylinder H is provided wlth an opening it to which is secured one end of the short pipe N. The other end of this pipe is connected tolthe tankO through V an openin 0 therein. This pipe is provided with a valve seat 72 into WhlCh isfitted the ration of the above described ap-' paratus is as follows: The tank 0, which is ovided with collars d a" i preferably made of a height not to exceed that of'the well It is filled with solution.

The valve orplug P is removed and lifted vertically through the pi e Q when the solution will run through t e pipe Ne into the wellh, throughthe pump chamber f and said well to ascertained height and also .through the well 9 to the height of the :liquid in the well h. The well it is made higher-than. the tank 0 and well It so that the solution will not overflow from well g. The shaft D is now put in operation andthe pump blades 7" rotated in the direction of the arrow shown in Fig. 4:. The rotation of these blades forces the solution through the enlargement of the pump casin opening and into a pi e not shown whic may be connected to 'sald casing by theflange f.

That portion of the shaft which extends into the well and carries the wheel ,J, and the wheel J itself, is made of or, covered with an acid or alkaline resisting material, so that they will not be acted on by the solution passing through the pump. The opening 9 in the cover of the casing is la-rger'm diame ter than that of the shaft so :"as to permit the solution to have free access to the chamber of the casing, but on account of the column of the solution in the well above the cover of the casing, a liquidseal is formed which renders a packing between the shaft and the cover unnecessary. The cover G fitting tightly in the casing also renders a packing between the cover and easing unnecessary; in fact, the whole construction is such that we entirely dispense with packing.

I The cover, however, is so fitted that it may be easily lifted out of. the pump case to remove the shaft D and the wheel J when desired. Valves are dispensed with and there are no joints or parts to leak. The construction is simplebut very efficient in operation.

In Fig. 5 we have shown a modified con struction of connection between the acid supply and the well it of the pump to be used when the supply of solution is abovethe top of the well h, for example, where the solution is running from a tower in a sulfuric acid process. In this ct'mstructioi-i we provide a casing R having a'valve seat 7* in the upper part thereof with an inlet opening or pipe r on the side below ,the valve seat 7*. S 1S another casing secured to the top of thecasing R and provided with an outlet consisting of a short pipe 8, havin a flange s which is secured to the wall of the well h and communicates therewith through the opening h. shown in Fig. 1 and heretofore" described. Secured to the upper end of the casingS is an arm T to which is pivoted a lever U having a weight W on the outer end thereof. To the inner end of this lever is secured a vertical rod. X on the lower end of which is secured the valve Y v which fits on the valve seat 7. Z is a float having an opening a through which the valve stem or 4 rod X passes and on which it moves vertically. The said rod is provided with an adjustable collar m above :the float which limits the vertical movement of said float. The flange of the inlet pipe 1" is connected to the flange on one end of the short length of pipe N which is secured to the tank 0 by the flange on the other end. The opening 0 in this tank communicates with the pipe N and forms a passageway or channel from the tank 0 'to the casing R. The top of the tank 0 or other source of supply is, as shown, above the casing S and is also above the pump well h.

In ,operation the solution from the tank 0 passes-into the casing R and through the ca valve seat or opening-T through theoutlet 8 i into the well h.- When the solution rises to a predetermined level, which level will also be maintained in the casin '8, the float Z rises against the collar on and lifts or carries the valve rod X vertically, closing the valve Y'against its seat 1', thereby cutting off the sup-ply of solution to the well h. As the solution is pumped out of. the pump casing, the level of the solution in the well is lowered, the float descends, the valve Y opens and permits solution torun into the well until the predetermined height is reached, whe the ,valve will? again seat.

This construe ion, it is seen, maintains a fixed leszel in the well, which is feasible where the head of the supply of solution is above the top of the well h.

As many changes could bemade in the I the invention, which as a matter of language,

might be said to fall therebetween.

Having now described our invention, what We claim as newand desire to secure by Letters Patent is:

" 1. In a device of the class described, a

supply tank, a pump casing; a well extend ing from the pump casing and having eommunication with the interior thereof; a second well arranged between the tank and first-mentioned well; valve-controlled means through which the tankand said wells communieate'with each other; an impeller in the pumpflcasing, provided with acid or alkaline resisting material; and an impeller shaft extending through the first-mentioned well and into the. pump casing and having 7 its portion within the well provided with acid or alkaline resisting material and its bearings arranged to be 'entirely free from A,

contact with the solution in said well.

2. In a device of the kind described, an impeller and its shaft provided with acid or alkaline'resisting material, a casing for the impeller having a discharge aperture and an unobstructed passage for the inlet of liquidaround the shaft, said shaft having its bearings so arran ed as to be free from contact with the liquid; inor outside of the casing; and" means forsupplying liquid to said casing, comprising a well which extends from the casing and has free communication with the interior of said casing. through the inlet passage of, the latter, a supply tank,

ing and thereof, a shaft extending a second well, means through which the supply tank and said wells communicate with each other; and a valve in the latter means for controlling the flow of liquid therethrough. i

3. In a device of the class described, a pump casing, a well extending from the eascommunicating with the interior throughthe vw'ell and into the casing, bearings for said shaft above the well and casing and out of contact therewith,, an impeller in the casing and secured to the shaft, the impeller and the shaft being covered with an acid or an alkaline resisting material, e said impeller running sufficiently free in the casing to avoid obstructing the flow of liquid between it and the casing.

4. In a device of the kind described, an impeller provided with acid or alkaline resistingmaterial, its shaft, and a casing for the impeller having a discharge aperture and an unobstructed passage for the inlet of liquid around the shaft, of a supply conduit, a,,valve infsaid conduit, and means for automatically governing the valve by the level of the liquid, the impeller shaft having its bearings arranged outside the casing and conduit and free from contact with the liquid.

5. In a device of the kind described, an impeller, providedwith acid or alkaline resisting material, its shaft and a casing for the impeller having a discharge aperture and an unobstructed passage for the inlet of hquid around the shaft, of means for supplying liquid to the casing, comprising a plurality of wells, having communication with each other, one of said Wellsbeing open to thepump casing and ,to the other well, means through which said other well is sup plied with liquid, a valve controlling such supplynand means for governing the supply by the level of the liquid in the last mentioned well. I

G. in a device of the class described, a base, a frame secured thereto, a circular pump casing on said base, said, pump casing having a circular tapered channel enlarged at its exit endand connnunicating with said casing, the upper Walls of the easing being tapered, a cover having an opening therein and a tapered edge or upturned flange fitting tightly against the tapered portion of, the casing and forming a chamber, a wheel consisting of a series of radial blades located in said chamber, an open end cylinder forming a well secured to. the casing and communicating with said chamber ind carrying on its lower end the said wheel. ih'e wheel shaft and casing-being made 0 'or covered with acid or alkaline resisting material, a bracket having bearings therein for the shaft, a collar or collars on the shaft (above said bearings adapted to take the thrust of the shaft, a liquid supply connected to said well, and an automatic valve between said supply and the well to regulate the supply of liquid to the well. 7. In a device of the class described, a

circular pump casing the upper wall ofwhich is tapered, a cover having an opening therein and 'a tapered edge or upturned flange fitting tightly against the tapered portion of the casing and forming a chamber, the casing provided on its periphery with a circular tapered channel enlarged at its exit end and communicating with said chamber, a wheel consisting of a series of radial blades located in said chamber, auropen end cylinder forming a well secured to and communicating with the chamber, a shaft supported in thrust bearings above said well, said shaft extending through the well and cover into the chamber, and on which the wheel is fastened, a source of solution supply above the well, a casing having a valve seat therein communicating with said supply and automatic valve adapted to restvon said seat, another casing con nected to the'first mentioned casing and having communication therewith through the valve seat and connected to the well, a rod connected to said valve and extendin into said casing, a float through which sai valve stem passes, and a collar on said stem above the float to limit the movement of the float on the stem, all substantially as and for the purpose set forth.

8. In a device of the class described, a pump casing, a well extending verticall from the casing-and in communication with the interior thereof, a vertical shaft extending through the well and into the casing, hearingsfor the shaft above the well, an impeller in the casing and connected to the shaft, the impeller a'nd the shaft being out of contact with the basin and the well, and the impeller runningsu ciently free in the casing to avoid obstructing the flow of liquid between it and the casing.

9. In a device of the class described, a

pump casing, a well extending verticall from the casing and in communication wit the interior thereof, an impeller in the easing, a vertical shaft extending through the well and into the casing and having the impeller connected thereto, the impeller and shaftcovered with an acid or alkaline resisting material, the impeller and the shaft being out of contact with the casing and well, the impeller running sufficiently free inthe casing to avoid contact therewith and,

avoid obstructing the flow of liquid between it and the casing, -and bearings for the shaft, said bearings being above the well and casing aiidr out of contact therewith.

10. In a device of the kind described, an impeller and its shaft provided with acid or alkaline resisting material, a casing for the impeller having a discharge aperture and an unobstructed passage for the inlet of liquid around theshaft, said shaft having its bearings so arranged as'to be free from contact With the li uid in or outside of the casing, the impel er running sufiiciently free in the casing to avoid contact therewith and avoid obstructingthe flow of liquid between it and the casing and means for supplying liquid to said casing, comprising a well which extends from the easing and has free communication with the interior of said casing through the. inlet passage of the latter, a supply tank, a secsisting material, its shaft, and a casing for the impeller having a discharge aperture 7 and an unobstructed passage for the inlet of liquid around the shaft, of a supply conduit, the impeller shaft having its bearings arranged outside the casing and conduit and free from contact with the liquid, the impeller running sufiiciently free in the casing to avoid contact therewith and avoid obstructing the flow of liquid between it and the casing.

In witness whereof we have hereunto set our hands at Perth Amboy, county of Middlesex and State of New Jersey, this 30- day of June, 1906.

FRANK L. ANTI SELL. DAVID W. BLAIR In presence of- W. S. HIGGINS, C. C. Bmuu'rr. 

